| Acronym | Meaning |
 | NAICS | North American Industry Classification System |
| OACU | Office Of Animal Care And Use |
| ACC | Air Combat Command |
| PLLI | National Institute On Postsecondary Education |
| FERMILAB | Fermi National Accelerator Laboratory |
| NRC | Nuclear Regulatory Commission |
| DFAS | Defense Finance And Accounting Service |
| FBIS | Foreign Broadcast Information Service (see WNC) |
| NCHS | National Center For Health Statistics |
| NCDC | National Climatic Data Center |
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